The original question is answered (yes, I now know how to embed fonts in Calibre!), and I'm very greatful for that.
But there seems to start a discussion about whether or not to embed fonts and about font types. Though it initially gave me some insight, it's gotten way passed topic by now. Someone should probably start a new thread for those topics

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I'd like to thank each and everyone of you for your help and active participation, and "close" this thread.
Happy reading and writing!